add Repeat and AutoNextTrack
fix repeat and volumeLevel displaying
Notifications: Bug with render
sidebar: refactor notifications collection
fix shuffle and add resources
Sidebar: Add region and notifications view
css changed
Notifications: Update view to CompositeView
add enums, add DOM-elements classes control
change style
add mute and new style
Sidebar and notifications: Ad functions for deleting and showing them
Notifications: counting not works
notification: fix unread counting
Add user model.

- add user model definition
- add user model data fields
- create current user model in application context
Add userbar view.

- add userbar view instead of auth view
- add template for userbar view
- add styles for userbar view
- add test avatar file into images folder
Changes to user model.

- make user info parameters "flat"
Changes to userbar view.

- remove unneeded methods
- replace userbar view file
Changes to userbar template.
Add searchbar model and view.